467
FNCA52 TJSJ 250658
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
258 AM AST SUN JAN 25 2026
DISCUSSION
THE AIR MASS WILL BEGIN TO DRY OUT TODAY, AFTER A FEW MORNING
SHOWERS AFFECTING EASTERN PUERTO RICO. IT STILL BREEZY, WITH WINDS
OUT OF THE EAST AT 18-20 MPH. EVEN THOUGH RELATIVE HUMIDITIES WILL
BE DECREASING TODAY, THE FIRE THREAT IS EXPECTED TO REMAIN LOW
TODAY.
PRZ014-260700-
SOUTHEAST COASTAL PLAINS-
258 AM AST SUN JAN 25 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 20 30
TEMP (24H TREND) 88 (+3) 70 (-3) 87
RH % (24H TREND) 54 (-14) 90 (+2) 57
WIND 20FT/EARLY(MPH) E 18 G23 E 13 G17 E 17 G22
WIND 20FT/LATE(MPH) E 18 G23 E 13 G17 E 17 G22
MIXING HGT(FT-AGL/MSL)5380 5100
TRANSPORT WND (MPH) E 17 E 17
VENT RATE (KT-FT) 80700 76500
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ015-260700-
SOUTHERN HILLS-
258 AM AST SUN JAN 25 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 40
TEMP (24H TREND) 84 (+5) 66 (-5) 82
RH % (24H TREND) 58 (-18) 94 (+3) 62
WIND 20FT/EARLY(MPH) E 14 E 12 E 13
WIND 20FT/LATE(MPH) E 14 E 12 E 13
MIXING HGT(FT-AGL/MSL)5900 5670
TRANSPORT WND (MPH) E 17 E 16
VENT RATE (KT-FT) 88500 79380
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ016-260700-
NORTH COASTAL PLAINS-
258 AM AST SUN JAN 25 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 10 30
TEMP (24H TREND) 86 (+3) 69 (-3) 85
RH % (24H TREND) 60 (-15) 95 (0) 63
WIND 20FT/EARLY(MPH) E 20 G23 E 17 E 19
WIND 20FT/LATE(MPH) E 20 G23 E 17 E 19
MIXING HGT(FT-AGL/MSL)5040 4870
TRANSPORT WND (MPH) E 20 E 16
VENT RATE (KT-FT) 85680 68180
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ017-260700-
NORTHERN HILLS-
258 AM AST SUN JAN 25 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 20 0 30
TEMP (24H TREND) 85 (+3) 66 (-4) 84
RH % (24H TREND) 57 (-17) 96 (0) 60
WIND 20FT/EARLY(MPH) E 18 E 14 E 17
WIND 20FT/LATE(MPH) E 18 E 14 E 17
MIXING HGT(FT-AGL/MSL)6040 6420
TRANSPORT WND (MPH) E 16 E 13
VENT RATE (KT-FT) 84560 70620
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ018-260700-
WEST COAST-
258 AM AST SUN JAN 25 2026
TODAY TONIGHT MON
CLOUD COVER PCLDY MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 40 40 50
TEMP (24H TREND) 88 (+3) 67 (-4) 86
RH % (24H TREND) 56 (-16) 93 (-2) 60
WIND 20FT/EARLY(MPH) E 13 E 12 E 12
WIND 20FT/LATE(MPH) E 13 E 12 E 12
MIXING HGT(FT-AGL/MSL)4480 4690
TRANSPORT WND (MPH) E 12 E 12
VENT RATE (KT-FT) 44800 46900
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ019-260700-
EASTERN INTERIOR-
258 AM AST SUN JAN 25 2026
TODAY TONIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 40
TEMP (24H TREND) 84 (+3) 68 (-4) 83
RH % (24H TREND) 64 (-14) 97 (+5) 65
WIND 20FT/EARLY(MPH) E 14 E 14 E 13
WIND 20FT/LATE(MPH) E 14 E 14 E 13
MIXING HGT(FT-AGL/MSL)5480 5520
TRANSPORT WND (MPH) E 18 E 17
VENT RATE (KT-FT) 87680 82800
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ022-260700-
LUQUILLO MOUNTAIN RANGE-
258 AM AST SUN JAN 25 2026
TODAY TONIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 50 50
TEMP (24H TREND) 79 (+4) 66 (-4) 79
RH % (24H TREND) 69 (-16) 99 (+4) 71
WIND 20FT/EARLY(MPH) E 13 E 11 E 12
WIND 20FT/LATE(MPH) E 13 E 11 E 12
MIXING HGT(FT-AGL/MSL)4390 4030
TRANSPORT WND (MPH) E 20 E 18
VENT RATE (KT-FT) 74630 64480
DISPERSION 5 5
DSI 6 5 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ023-260700-
CENTRAL MOUNTAIN RANGE-
258 AM AST SUN JAN 25 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 20 0 40
TEMP (24H TREND) 83 (+6) 64 (-4) 82
RH % (24H TREND) 57 (-20) 96 (+1) 61
WIND 20FT/EARLY(MPH) E 11 E 9 E 10
WIND 20FT/LATE(MPH) E 11 E 9 E 10
MIXING HGT(FT-AGL/MSL)7140 7280
TRANSPORT WND (MPH) E 13 E 10
VENT RATE (KT-FT) 78540 65520
DISPERSION 5 5
DSI 6 2 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ024-260700-
CAYEY MOUNTAIN RANGE-
258 AM AST SUN JAN 25 2026
TODAY TONIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 40
TEMP (24H TREND) 79 (+3) 67 (-3) 79
RH % (24H TREND) 71 (-14) 98 (+2) 72
WIND 20FT/EARLY(MPH) E 13 E 11 E 11
WIND 20FT/LATE(MPH) E 13 E 11 E 11
MIXING HGT(FT-AGL/MSL)4760 4610
TRANSPORT WND (MPH) E 20 E 18
VENT RATE (KT-FT) 80920 73760
DISPERSION 5 5
DSI 6 3 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ025-260700-
VIEQUES-
258 AM AST SUN JAN 25 2026
TODAY TONIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 40 50
TEMP (24H TREND) 85 (+1) 71 (-4) 86
RH % (24H TREND) 58 (-10) 95 (+10) 58
WIND 20FT/EARLY(MPH) E 18 G22 E 17 G21 E 16 G20
WIND 20FT/LATE(MPH) E 18 G22 E 17 G21 E 16 G20
MIXING HGT(FT-AGL/MSL)4000 3520
TRANSPORT WND (MPH) E 21 E 22
VENT RATE (KT-FT) 72000 66880
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ026-260700-
CULEBRA-
258 AM AST SUN JAN 25 2026
TODAY TONIGHT MON
CLOUD COVER PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 50 40
TEMP (24H TREND) 85 (+2) 72 (-4) 85
RH % (24H TREND) 60 (-12) 90 (+3) 62
WIND 20FT/EARLY(MPH) E 18 G23 E 17 G22 E 17 G21
WIND 20FT/LATE(MPH) E 18 G23 E 17 G22 E 17 G21
MIXING HGT(FT-AGL/MSL)3770 3470
TRANSPORT WND (MPH) E 21 E 21
VENT RATE (KT-FT) 67860 62460
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
PRZ027-260700-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
258 AM AST SUN JAN 25 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR MCLEAR MCLEAR
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 20 30
TEMP (24H TREND) 89 (+4) 68 (-4) 87
RH % (24H TREND) 53 (-14) 88 (0) 57
WIND 20FT/EARLY(MPH) E 19 G25 E 18 G23 E 18 G23
WIND 20FT/LATE(MPH) E 19 G25 E 18 G23 E 18 G23
MIXING HGT(FT-AGL/MSL)4990 4910
TRANSPORT WND (MPH) E 17 E 18
VENT RATE (KT-FT) 74850 78560
DISPERSION 5 5
DSI 6 4 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ001-260700-
SAINT THOMAS AND SAINT JOHN-
258 AM AST SUN JAN 25 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 30
TEMP (24H TREND) 83 (+2) 69 (-4) 83
RH % (24H TREND) 66 (-11) 98 (+4) 68
WIND 20FT/EARLY(MPH) E 19 G23 E 18 G22 E 16 G20
WIND 20FT/LATE(MPH) E 19 G23 E 18 G22 E 16 G20
MIXING HGT(FT-AGL/MSL)3630 3330
TRANSPORT WND (MPH) E 22 E 22
VENT RATE (KT-FT) 68970 63270
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
VIZ002-260700-
ST CROIX-
258 AM AST SUN JAN 25 2026
TODAY TONIGHT MON
CLOUD COVER MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 30
TEMP (24H TREND) 84 (+1) 73 (-2) 84
RH % (24H TREND) 63 (-10) 87 (0) 65
WIND 20FT/EARLY(MPH) E 18 G22 E 17 G20 E 16 G19
WIND 20FT/LATE(MPH) E 18 G22 E 17 G20 E 16 G19
MIXING HGT(FT-AGL/MSL)4210 4120
TRANSPORT WND (MPH) E 24 E 21
VENT RATE (KT-FT) 88410 74160
DISPERSION 5 5
DSI 6 6 6
RH RECOVERY EXCELLENT
REMARKS...NONE.
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